WebSVN – HelenOS – Path Comparison – / – /branches/sparc/kernel/ Rev 3492 and /branches/sparc/kernel Rev 3489

Ignore whitespace Rev 3492 → Rev 3489

 /branches/sparc/kernel/arch/sparc64/include/trap/syscall.h
 ,14 → 31,26
  */
 /**
  * @file
- * @brief
+ * @brief This file contains the trap_instruction handler.
+ *
+ * The trap_instruction trap is used to implement syscalls.
  */
 #ifndef KERN_sparc64_SYSCALL_TRAP_H_
 #define KERN_sparc64_SYSCALL_TRAP_H_
-#define TT_TRAP_INSTRUCTION_0       0x100
+#define TT_TRAP_INSTRUCTION(n)      (0x100 + (n))
+#define TT_TRAP_INSTRUCTION_LAST    TT_TRAP_INSTRUCTION(127)
+#ifdef __ASM__
+.macro TRAP_INSTRUCTION n
+    ba trap_instruction_handler
+    mov TT_TRAP_INSTRUCTION(\n) - TT_TRAP_INSTRUCTION(0), %g2
+.endm
+#endif /* __ASM__ */
 #endif
 /** @}

 /branches/sparc/kernel/arch/sparc64/include/trap/regwin.h
 ,7 → 39,6
 #include <arch/stack.h>
 #include <arch/arch.h>
-#include <align.h>
 #define TT_CLEAN_WINDOW         0x24
 #define TT_SPILL_0_NORMAL       0x80    /* kernel spills */
 ,11 → 72,6
 #define I6_OFFSET   112
 #define I7_OFFSET   120
-/* Uspace Window Buffer constants. */
-#define UWB_SIZE    ((NWINDOWS - 1) * STACK_WINDOW_SAVE_AREA_SIZE)
-#define UWB_ALIGNMENT   1024
-#define UWB_ASIZE   ALIGN_UP(UWB_SIZE, UWB_ALIGNMENT)
 #ifdef __ASM__
 /*

 /branches/sparc/kernel/arch/sparc64/src/trap/trap_table.S
 ,22 → 329,198
 fill_1_normal_tl0:
     FILL_NORMAL_HANDLER_USERSPACE
-/* TT = 0x100 - 0x17f, TL = 0, trap_instruction_0 - trap_instruction_7f */
-.irp cur, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,\
-, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,\
-, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,\
-, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76,\
-, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,\
-, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,\
-, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126,\
-.org trap_table + (TT_TRAP_INSTRUCTION_0+\cur)*ENTRY_SIZE
-.global trap_instruction_\cur\()_tl0
-trap_instruction_\cur\()_tl0:
-    ba trap_instruction_handler
-    mov \cur, %g2
-.endr
+/* TT = 0x100, TL = 0, trap_instruction_0 */
+.org trap_table + TT_TRAP_INSTRUCTION(0)*ENTRY_SIZE
+.global trap_instruction_0_tl0
+trap_instruction_0_tl0:
+    TRAP_INSTRUCTION 0
+/* TT = 0x101, TL = 0, trap_instruction_1 */
+.org trap_table + TT_TRAP_INSTRUCTION(1)*ENTRY_SIZE
+.global trap_instruction_1_tl0
+trap_instruction_1_tl0:
+    TRAP_INSTRUCTION 1
+/* TT = 0x102, TL = 0, trap_instruction_2 */
+.org trap_table + TT_TRAP_INSTRUCTION(2)*ENTRY_SIZE
+.global trap_instruction_2_tl0
+trap_instruction_2_tl0:
+    TRAP_INSTRUCTION 2
+/* TT = 0x103, TL = 0, trap_instruction_3 */
+.org trap_table + TT_TRAP_INSTRUCTION(3)*ENTRY_SIZE
+.global trap_instruction_3_tl0
+trap_instruction_3_tl0:
+    TRAP_INSTRUCTION 3
+/* TT = 0x104, TL = 0, trap_instruction_4 */
+.org trap_table + TT_TRAP_INSTRUCTION(4)*ENTRY_SIZE
+.global trap_instruction_4_tl0
+trap_instruction_4_tl0:
+    TRAP_INSTRUCTION 4
+/* TT = 0x105, TL = 0, trap_instruction_5 */
+.org trap_table + TT_TRAP_INSTRUCTION(5)*ENTRY_SIZE
+.global trap_instruction_5_tl0
+trap_instruction_5_tl0:
+    TRAP_INSTRUCTION 5
+/* TT = 0x106, TL = 0, trap_instruction_6 */
+.org trap_table + TT_TRAP_INSTRUCTION(6)*ENTRY_SIZE
+.global trap_instruction_6_tl0
+trap_instruction_6_tl0:
+    TRAP_INSTRUCTION 6
+/* TT = 0x107, TL = 0, trap_instruction_7 */
+.org trap_table + TT_TRAP_INSTRUCTION(7)*ENTRY_SIZE
+.global trap_instruction_7_tl0
+trap_instruction_7_tl0:
+    TRAP_INSTRUCTION 7
+/* TT = 0x108, TL = 0, trap_instruction_8 */
+.org trap_table + TT_TRAP_INSTRUCTION(8)*ENTRY_SIZE
+.global trap_instruction_8_tl0
+trap_instruction_8_tl0:
+    TRAP_INSTRUCTION 8
+/* TT = 0x109, TL = 0, trap_instruction_9 */
+.org trap_table + TT_TRAP_INSTRUCTION(9)*ENTRY_SIZE
+.global trap_instruction_9_tl0
+trap_instruction_9_tl0:
+    TRAP_INSTRUCTION 9
+/* TT = 0x10a, TL = 0, trap_instruction_10 */
+.org trap_table + TT_TRAP_INSTRUCTION(10)*ENTRY_SIZE
+.global trap_instruction_10_tl0
+trap_instruction_10_tl0:
+    TRAP_INSTRUCTION 10
+/* TT = 0x10b, TL = 0, trap_instruction_11 */
+.org trap_table + TT_TRAP_INSTRUCTION(11)*ENTRY_SIZE
+.global trap_instruction_11_tl0
+trap_instruction_11_tl0:
+    TRAP_INSTRUCTION 11
+/* TT = 0x10c, TL = 0, trap_instruction_12 */
+.org trap_table + TT_TRAP_INSTRUCTION(12)*ENTRY_SIZE
+.global trap_instruction_12_tl0
+trap_instruction_12_tl0:
+    TRAP_INSTRUCTION 12
+/* TT = 0x10d, TL = 0, trap_instruction_13 */
+.org trap_table + TT_TRAP_INSTRUCTION(13)*ENTRY_SIZE
+.global trap_instruction_13_tl0
+trap_instruction_13_tl0:
+    TRAP_INSTRUCTION 13
+/* TT = 0x10e, TL = 0, trap_instruction_14 */
+.org trap_table + TT_TRAP_INSTRUCTION(14)*ENTRY_SIZE
+.global trap_instruction_14_tl0
+trap_instruction_14_tl0:
+    TRAP_INSTRUCTION 14
+/* TT = 0x10f, TL = 0, trap_instruction_15 */
+.org trap_table + TT_TRAP_INSTRUCTION(15)*ENTRY_SIZE
+.global trap_instruction_15_tl0
+trap_instruction_15_tl0:
+    TRAP_INSTRUCTION 15
+/* TT = 0x110, TL = 0, trap_instruction_16 */
+.org trap_table + TT_TRAP_INSTRUCTION(16)*ENTRY_SIZE
+.global trap_instruction_16_tl0
+trap_instruction_16_tl0:
+    TRAP_INSTRUCTION 16
+/* TT = 0x111, TL = 0, trap_instruction_17 */
+.org trap_table + TT_TRAP_INSTRUCTION(17)*ENTRY_SIZE
+.global trap_instruction_17_tl0
+trap_instruction_17_tl0:
+    TRAP_INSTRUCTION 17
+/* TT = 0x112, TL = 0, trap_instruction_18 */
+.org trap_table + TT_TRAP_INSTRUCTION(18)*ENTRY_SIZE
+.global trap_instruction_18_tl0
+trap_instruction_18_tl0:
+    TRAP_INSTRUCTION 18
+/* TT = 0x113, TL = 0, trap_instruction_19 */
+.org trap_table + TT_TRAP_INSTRUCTION(19)*ENTRY_SIZE
+.global trap_instruction_19_tl0
+trap_instruction_19_tl0:
+    TRAP_INSTRUCTION 19
+/* TT = 0x114, TL = 0, trap_instruction_20 */
+.org trap_table + TT_TRAP_INSTRUCTION(20)*ENTRY_SIZE
+.global trap_instruction_20_tl0
+trap_instruction_20_tl0:
+    TRAP_INSTRUCTION 20
+/* TT = 0x115, TL = 0, trap_instruction_21 */
+.org trap_table + TT_TRAP_INSTRUCTION(21)*ENTRY_SIZE
+.global trap_instruction_21_tl0
+trap_instruction_21_tl0:
+    TRAP_INSTRUCTION 21
+/* TT = 0x116, TL = 0, trap_instruction_22 */
+.org trap_table + TT_TRAP_INSTRUCTION(22)*ENTRY_SIZE
+.global trap_instruction_22_tl0
+trap_instruction_22_tl0:
+    TRAP_INSTRUCTION 22
+/* TT = 0x117, TL = 0, trap_instruction_23 */
+.org trap_table + TT_TRAP_INSTRUCTION(23)*ENTRY_SIZE
+.global trap_instruction_23_tl0
+trap_instruction_23_tl0:
+    TRAP_INSTRUCTION 23
+/* TT = 0x118, TL = 0, trap_instruction_24 */
+.org trap_table + TT_TRAP_INSTRUCTION(24)*ENTRY_SIZE
+.global trap_instruction_24_tl0
+trap_instruction_24_tl0:
+    TRAP_INSTRUCTION 24
+/* TT = 0x119, TL = 0, trap_instruction_25 */
+.org trap_table + TT_TRAP_INSTRUCTION(25)*ENTRY_SIZE
+.global trap_instruction_25_tl0
+trap_instruction_25_tl0:
+    TRAP_INSTRUCTION 25
+/* TT = 0x11a, TL = 0, trap_instruction_26 */
+.org trap_table + TT_TRAP_INSTRUCTION(26)*ENTRY_SIZE
+.global trap_instruction_26_tl0
+trap_instruction_26_tl0:
+    TRAP_INSTRUCTION 26
+/* TT = 0x11b, TL = 0, trap_instruction_27 */
+.org trap_table + TT_TRAP_INSTRUCTION(27)*ENTRY_SIZE
+.global trap_instruction_27_tl0
+trap_instruction_27_tl0:
+    TRAP_INSTRUCTION 27
+/* TT = 0x11c, TL = 0, trap_instruction_28 */
+.org trap_table + TT_TRAP_INSTRUCTION(28)*ENTRY_SIZE
+.global trap_instruction_28_tl0
+trap_instruction_28_tl0:
+    TRAP_INSTRUCTION 28
+/* TT = 0x11d, TL = 0, trap_instruction_29 */
+.org trap_table + TT_TRAP_INSTRUCTION(29)*ENTRY_SIZE
+.global trap_instruction_29_tl0
+trap_instruction_29_tl0:
+    TRAP_INSTRUCTION 29
+/* TT = 0x11e, TL = 0, trap_instruction_30 */
+.org trap_table + TT_TRAP_INSTRUCTION(30)*ENTRY_SIZE
+.global trap_instruction_30_tl0
+trap_instruction_30_tl0:
+    TRAP_INSTRUCTION 30
+/* TT = 0x11f, TL = 0, trap_instruction_31 */
+.org trap_table + TT_TRAP_INSTRUCTION(31)*ENTRY_SIZE
+.global trap_instruction_31_tl0
+trap_instruction_31_tl0:
+    TRAP_INSTRUCTION 31
 /*
  * Handlers for TL>0.
  */
 ,8 → 924,9
      * Fill all windows stored in the buffer.
      */
     clr %g4
-:  andcc %g7, UWB_ALIGNMENT - 1, %g0   ! alignment check
-    bz 0f                   ! %g7 is UWB_ALIGNMENT-aligned, no more windows to refill
+    set PAGE_SIZE - 1, %g5
+:  andcc %g7, %g5, %g0         ! PAGE_SIZE alignment check
+    bz 0f                   ! %g7 is page-aligned, no more windows to refill
     nop
     add %g7, -STACK_WINDOW_SAVE_AREA_SIZE, %g7

 /branches/sparc/kernel/arch/sparc64/src/proc/thread.c
 ,8 → 34,9
 #include <proc/thread.h>
 #include <arch/proc/thread.h>
-#include <mm/slab.h>
-#include <arch/trap/regwin.h>
+#include <mm/frame.h>
+#include <mm/page.h>
+#include <arch/mm/page.h>
 #include <align.h>
 void thr_constructor_arch(thread_t *t)
 ,12 → 50,12
 void thr_destructor_arch(thread_t *t)
 {
     if (t->arch.uspace_window_buffer) {
-        uintptr_t uw_buf = (uintptr_t) t->arch.uspace_window_buffer;
         /*
          * Mind the possible alignment of the userspace window buffer
          * belonging to a killed thread.
          */
-        free((uint8_t *) ALIGN_DOWN(uw_buf, UWB_ALIGNMENT));
+        frame_free(KA2PA(ALIGN_DOWN((uintptr_t)
+            t->arch.uspace_window_buffer, PAGE_SIZE)));
     }
 }
 ,7 → 67,7
          * The thread needs userspace window buffer and the object
          * returned from the slab allocator doesn't have any.
          */
-        t->arch.uspace_window_buffer = malloc(UWB_ASIZE, 0);
+        t->arch.uspace_window_buffer = frame_alloc(ONE_FRAME, FRAME_KA);
     } else {
         uintptr_t uw_buf = (uintptr_t) t->arch.uspace_window_buffer;
 ,7 → 76,7
          * belonging to a killed thread.
          */
         t->arch.uspace_window_buffer = (uint8_t *) ALIGN_DOWN(uw_buf,
-            UWB_ASIZE);
+            PAGE_SIZE);
     }
 }

 /branches/sparc/kernel/arch/ia64/include/asm.h
 ,50 → 44,21
 static inline void  outb(uint64_t port,uint8_t v)
 {
-    *((uint8_t *)(IA64_IOSPACE_ADDRESS + ( (port & 0xfff) | ( (port >> 2) << 12 )))) = v;
+    *((char *)(IA64_IOSPACE_ADDRESS + ( (port & 0xfff) | ( (port >> 2) << 12 )))) = v;
     asm volatile ("mf\n" ::: "memory");
 }
-static inline void  outw(uint64_t port,uint16_t v)
-{
-    *((uint16_t *)(IA64_IOSPACE_ADDRESS + ( (port & 0xfff) | ( (port >> 2) << 12 )))) = v;
-    asm volatile ("mf\n" ::: "memory");
-}
-static inline void  outl(uint64_t port,uint32_t v)
-{
-    *((uint32_t *)(IA64_IOSPACE_ADDRESS + ( (port & 0xfff) | ( (port >> 2) << 12 )))) = v;
-    asm volatile ("mf\n" ::: "memory");
-}
 static inline uint8_t inb(uint64_t port)
 {
     asm volatile ("mf\n" ::: "memory");
-    return *((uint8_t *)(IA64_IOSPACE_ADDRESS + ( (port & 0xfff) | ( (port >> 2) << 12 ))));
+    return *((char *)(IA64_IOSPACE_ADDRESS + ( (port & 0xfff) | ( (port >> 2) << 12 ))));
 }
-static inline uint16_t inw(uint64_t port)
-{
-    asm volatile ("mf\n" ::: "memory");
-    return *((uint16_t *)(IA64_IOSPACE_ADDRESS + ( (port & 0xffE) | ( (port >> 2) << 12 ))));
-}
-static inline uint32_t inl(uint64_t port)
-{
-    asm volatile ("mf\n" ::: "memory");
-    return *((uint32_t *)(IA64_IOSPACE_ADDRESS + ( (port & 0xfff) | ( (port >> 2) << 12 ))));
-}
 /** Return base address of current stack
  *
  * Return the base address of the current stack.

/branches/sparc/kernel/arch/arm32/include/interrupt.h
37,7 → 37,6
#define KERN_arm32_INTERRUPT_H_

#include <arch/types.h>
#include <arch/exception.h>

/** Initial size of exception dispatch table. */
#define IVT_ITEMS 6

 /branches/sparc/kernel/arch/ppc32/include/exception.h
 ,7 → 36,6
 #define KERN_ppc32_EXCEPTION_H_
 #include <arch/types.h>
-#include <arch/regutils.h>
 typedef struct {
     uint32_t r0;
 ,10 → 84,11
 }
 /** Return true if exception happened while in userspace */
+#include <panic.h>
 static inline int istate_from_uspace(istate_t *istate)
 {
-    /* true if privilege level PR (copied from MSR) == 1 */
-    return (istate->srr1 & MSR_PR) != 0;
+    panic("istate_from_uspace not yet implemented");
+    return 0;
 }
 static inline unative_t istate_get_pc(istate_t *istate)

 /branches/sparc/kernel/arch/ppc32/include/asm/regname.h
 ,8 → 214,8
 #define hid0    1008
 /* MSR bits */
-#define msr_dr  (1 << 4)
-#define msr_ir  (1 << 5)
+#define msr_ir  (1 << 4)
+#define msr_dr  (1 << 5)
 #define msr_pr  (1 << 14)
 #define msr_ee  (1 << 15)

 /branches/sparc/kernel/arch/amd64/include/syscall.h
 ,6 → 35,8
 #ifndef KERN_amd64_SYSCALL_H_
 #define KERN_amd64_SYSCALL_H_
+#include <arch/types.h>
 extern void syscall_setup_cpu(void);
 #endif

/branches/sparc/kernel/arch/ia32/include/syscall.h
File deleted
\ No newline at end of file
Property changes:
Deleted: svn:special
-*
\ No newline at end of property

 /branches/sparc/kernel/arch/ia32/include/asm.h
 ,22 → 247,6
     return v;
 }
-/** Write to MSR */
-static inline void write_msr(uint32_t msr, uint64_t value)
-{
-    asm volatile ("wrmsr" : : "c" (msr), "a" ((uint32_t)(value)),
-        "d" ((uint32_t)(value >> 32)));
-}
-static inline uint64_t read_msr(uint32_t msr)
-{
-    uint32_t ax, dx;
-    asm volatile ("rdmsr" : "=a"(ax), "=d"(dx) : "c" (msr));
-    return ((uint64_t)dx << 32) | ax;
-}
 /** Return base address of current stack
  *
  * Return the base address of the current stack.

 /branches/sparc/kernel/arch/ia32/include/cpu.h
 ,21 → 35,12
 #ifndef KERN_ia32_CPU_H_
 #define KERN_ia32_CPU_H_
+#include <arch/pm.h>
+#include <arch/asm.h>
 #define EFLAGS_IF       (1 << 9)
 #define EFLAGS_RF       (1 << 16)
-#define CR4_OSFXSR_MASK (1<<9)
-/* Support for SYSENTER and SYSEXIT */
-#define IA32_MSR_SYSENTER_CS    0x174
-#define IA32_MSR_SYSENTER_ESP   0x175
-#define IA32_MSR_SYSENTER_EIP   0x176
-#ifndef __ASM__
-#include <arch/pm.h>
-#include <arch/asm.h>
 typedef struct {
     int vendor;
     int family;
 ,8 → 51,9
     count_t iomapver_copy;  /** Copy of TASK's I/O Permission bitmap generation count. */
 } cpu_arch_t;
-#endif
+#define CR4_OSFXSR_MASK (1<<9)
 #endif
 /** @}

/branches/sparc/kernel/arch/ia32/Makefile.inc
160,5 → 160,4
arch/$(ARCH)/src/boot/boot.S \
arch/$(ARCH)/src/boot/memmap.c \
arch/$(ARCH)/src/fpu_context.c \
arch/$(ARCH)/src/debugger.c \
arch/$(ARCH)/src/syscall.c
arch/$(ARCH)/src/debugger.c

 /branches/sparc/kernel/arch/ia32/src/asm.S
 ,45 → 147,6
     popfl
 .endm
-/*
- * The SYSENTER syscall mechanism can be used for syscalls with
- * four or fewer arguments. To pass these four arguments, we
- * use four registers: EDX, ECX, EBX, ESI. The syscall number
- * is passed in EAX. We use EDI to remember the return address
- * and EBP to remember the stack. The INT-based syscall mechanism
- * can actually handle six arguments plus the syscall number
- * entirely in registers.
- */
-.global sysenter_handler
-sysenter_handler:
-    pushl %ebp  # remember user stack
-    pushl %edi  # remember return user address
-    pushl %gs   # remember TLS
-    pushl %eax  # syscall number
-    subl $8, %esp   # unused sixth and fifth argument
-    pushl %esi  # fourth argument
-    pushl %ebx  # third argument
-    pushl %ecx  # second argument
-    pushl %edx  # first argument
-    movw $16, %ax
-    movw %ax, %ds
-    movw %ax, %es
-    cld
-    call syscall_handler
-    addl $28, %esp  # remove arguments from stack
-    pop %gs     # restore TLS
-    pop %edx    # prepare return EIP for SYSEXIT
-    pop %ecx    # prepare userspace ESP for SYSEXIT
-    sysexit     # return to userspace
 ## Declare interrupt handlers
 #
 # Declare interrupt handlers for n interrupt

 /branches/sparc/kernel/arch/ia32/src/proc/scheduler.c
 ,14 → 58,8
  */
 void before_thread_runs_arch(void)
 {
-    uintptr_t kstk = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE -
+    CPU->arch.tss->esp0 = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE -
         SP_DELTA];
-    /* Set kernel stack for CP3 -> CPL0 switch via SYSENTER */
-    write_msr(IA32_MSR_SYSENTER_ESP, kstk);
-    /* Set kernel stack for CPL3 -> CPL0 switch via interrupt */
-    CPU->arch.tss->esp0 = kstk;
     CPU->arch.tss->ss0 = selector(KDATA_DES);
     /* Set up TLS in GS register */

 /branches/sparc/kernel/arch/ia32/src/cpu/cpu.c
 ,7 → 42,6
 #include <fpu_context.h>
 #include <arch/smp/apic.h>
-#include <arch/syscall.h>
 /*
  * Identification of CPUs.
 ,9 → 123,6
             : "i" (CR4_OSFXSR_MASK|(1<<10))
         );
     }
-    /* Setup fast SYSENTER/SYSEXIT syscalls */
-    syscall_setup_cpu();
 }
 void cpu_identify(void)

 /branches/sparc/kernel/generic/src/main/uinit.c
 ,9 → 46,7
 #include <userspace.h>
 #include <mm/slab.h>
 #include <arch.h>
-#include <udebug/udebug.h>
 /** Thread used to bring up userspace thread.
  *
  * @param arg Pointer to structure containing userspace entry and stack
 ,10 → 65,6
      * deployed for the event of forceful task termination.
      */
     thread_detach(THREAD);
-#ifdef CONFIG_UDEBUG
-    udebug_stoppable_end();
-#endif
     uarg.uspace_entry = ((uspace_arg_t *) arg)->uspace_entry;
     uarg.uspace_stack = ((uspace_arg_t *) arg)->uspace_stack;

 /branches/sparc/kernel/generic/src/proc/task.c
 ,18 → 155,7
     ta->capabilities = 0;
     ta->cycles = 0;
-#ifdef CONFIG_UDEBUG
-    /* Init debugging stuff */
-    udebug_task_init(&ta->udebug);
-    /* Init kbox stuff */
-    ipc_answerbox_init(&ta->kernel_box, ta);
-    ta->kb_thread = NULL;
-    mutex_initialize(&ta->kb_cleanup_lock, MUTEX_PASSIVE);
-    ta->kb_finished = false;
-#endif
     ipc_answerbox_init(&ta->answerbox, ta);
     for (i = 0; i < IPC_MAX_PHONES; i++)
         ipc_phone_init(&ta->phones[i]);

 /branches/sparc/kernel/generic/src/proc/thread.c
 ,10 → 180,6
         return -1;
     }
-#ifdef CONFIG_UDEBUG
-    mutex_initialize(&t->udebug.lock, MUTEX_PASSIVE);
-#endif
     return 0;
 }
 ,11 → 347,6
     avltree_node_initialize(&t->threads_tree_node);
     t->threads_tree_node.key = (uintptr_t) t;
-#ifdef CONFIG_UDEBUG
-    /* Init debugging stuff */
-    udebug_thread_initialize(&t->udebug);
-#endif
     /* might depend on previous initialization */
     thread_create_arch(t);
 ,17 → 409,12
     ipl_t ipl;
     /*
-     * Attach to the specified task.
+     * Attach to the current task.
      */
     ipl = interrupts_disable();
     spinlock_lock(&task->lock);
     atomic_inc(&task->refcount);
-    /* Must not count kbox thread into lifecount */
-    if (t->flags & THREAD_FLAG_USPACE)
-        atomic_inc(&task->lifecount);
+    atomic_inc(&task->lifecount);
     list_append(&t->th_link, &task->th_head);
     spinlock_unlock(&task->lock);
 ,19 → 437,14
 {
     ipl_t ipl;
-    if (THREAD->flags & THREAD_FLAG_USPACE) {
-#ifdef CONFIG_UDEBUG
-        /* Generate udebug THREAD_E event */
-        udebug_thread_e_event();
-#endif
-        if (atomic_predec(&TASK->lifecount) == 0) {
-            /*
-             * We are the last userspace thread in the task that
-             * still has not exited. With the exception of the
-             * moment the task was created, new userspace threads
-             * can only be created by threads of the same task.
-             * We are safe to perform cleanup.
-             */
+    if (atomic_predec(&TASK->lifecount) == 0) {
+        /*
+         * We are the last thread in the task that still has not exited.
+         * With the exception of the moment the task was created, new
+         * threads can only be created by threads of the same task.
+         * We are safe to perform cleanup.
+         */
+        if (THREAD->flags & THREAD_FLAG_USPACE) {
             ipc_cleanup();
             futex_cleanup();
             LOG("Cleanup of task %" PRIu64" completed.", TASK->taskid);
 ,11 → 741,6
         thread_attach(t, TASK);
         thread_ready(t);
-#ifdef CONFIG_UDEBUG
-        /* Generate udebug THREAD_B event */
-        udebug_thread_b_event(t);
-#endif
         return 0;
     } else
         free(kernel_uarg);

 /branches/sparc/kernel/generic/src/mm/as.c
 ,7 → 385,7
     if (pages < area->pages) {
         bool cond;
-        uintptr_t start_free = area->base + pages * PAGE_SIZE;
+        uintptr_t start_free = area->base + pages*PAGE_SIZE;
         /*
          * Shrinking the area.
 ,7 → 395,7
         /*
          * Start TLB shootdown sequence.
          */
-        tlb_shootdown_start(TLB_INVL_PAGES, as->asid, area->base +
+        tlb_shootdown_start(TLB_INVL_PAGES, AS->asid, area->base +
             pages * PAGE_SIZE, area->pages - pages);
         /*

 /branches/sparc/kernel/generic/src/ipc/sysipc.c
 ,9 → 42,8
 #include <ipc/sysipc.h>
 #include <ipc/irq.h>
 #include <ipc/ipcrsc.h>
-#include <ipc/kbox.h>
-#include <udebug/udebug_ipc.h>
 #include <arch/interrupt.h>
+#include <print.h>
 #include <syscall/copy.h>
 #include <security/cap.h>
 #include <mm/as.h>
 ,11 → 295,10
 /** Called before the request is sent.
  *
  * @param call      Call structure with the request.
- * @param phone     Phone that the call will be sent through.
  *
  * @return      Return 0 on success, ELIMIT or EPERM on error.
  */
-static int request_preprocess(call_t *call, phone_t *phone)
+static int request_preprocess(call_t *call)
 {
     int newphid;
     size_t size;
 ,10 → 340,6
             return rc;
         }
         break;
-#ifdef CONFIG_UDEBUG
-    case IPC_M_DEBUG_ALL:
-        return udebug_request_preprocess(call, phone);
-#endif
     default:
         break;
     }
 ,7 → 369,6
     if (call->buffer) {
         /* This must be an affirmative answer to IPC_M_DATA_READ. */
-        /* or IPC_M_DEBUG_ALL/UDEBUG_M_MEM_READ... */
         uintptr_t dst = IPC_GET_ARG1(call->data);
         size_t size = IPC_GET_ARG2(call->data);
         int rc = copy_to_uspace((void *) dst, call->buffer, size);
 ,13 → 399,7
             return -1;
         }
         IPC_SET_ARG5(call->data, phoneid);
-    }
-    switch (IPC_GET_METHOD(call->data)) {
-    case IPC_M_DEBUG_ALL:
-        return -1;
-    default:
-        break;
-    }
+    }
     return 0;
 }
 ,7 → 441,7
     IPC_SET_ARG4(call.data, 0);
     IPC_SET_ARG5(call.data, 0);
-    if (!(res = request_preprocess(&call, phone))) {
+    if (!(res = request_preprocess(&call))) {
         rc = ipc_call_sync(phone, &call);
         if (rc != EOK)
             return rc;
 ,7 → 481,7
     GET_CHECK_PHONE(phone, phoneid, return ENOENT);
-    if (!(res = request_preprocess(&call, phone))) {
+    if (!(res = request_preprocess(&call))) {
         rc = ipc_call_sync(phone, &call);
         if (rc != EOK)
             return rc;
 ,7 → 550,7
      */
     IPC_SET_ARG5(call->data, 0);
-    if (!(res = request_preprocess(call, phone)))
+    if (!(res = request_preprocess(call)))
         ipc_call(phone, call);
     else
         ipc_backsend_err(phone, call, res);
 ,7 → 584,7
         ipc_call_free(call);
         return (unative_t) rc;
     }
-    if (!(res = request_preprocess(call, phone)))
+    if (!(res = request_preprocess(call)))
         ipc_call(phone, call);
     else
         ipc_backsend_err(phone, call, res);
 ,16 → 809,11
         ASSERT(! (call->flags & IPC_CALL_STATIC_ALLOC));
+        atomic_dec(&TASK->active_calls);
         if (call->flags & IPC_CALL_DISCARD_ANSWER) {
             ipc_call_free(call);
             goto restart;
-        } else {
-            /*
-             * Decrement the counter of active calls only if the
-             * call is not an answer to IPC_M_PHONE_HUNGUP,
-             * which doesn't contribute to the counter.
-             */
-            atomic_dec(&TASK->active_calls);
         }
         STRUCT_TO_USPACE(&calldata->args, &call->data.args);
 ,30 → 868,5
     return 0;
 }
-#include <console/console.h>
-/**
- * Syscall connect to a task by id.
- *
- * @return      Phone id on success, or negative error code.
- */
-unative_t sys_ipc_connect_kbox(sysarg64_t *uspace_taskid_arg)
-{
-#ifdef CONFIG_UDEBUG
-    sysarg64_t taskid_arg;
-    int rc;
-    rc = copy_from_uspace(&taskid_arg, uspace_taskid_arg, sizeof(sysarg64_t));
-    if (rc != 0)
-        return (unative_t) rc;
-    LOG("sys_ipc_connect_kbox(%" PRIu64 ")\n", taskid_arg.value);
-    return ipc_connect_kbox(taskid_arg.value);
-#else
-    return (unative_t) ENOTSUP;
-#endif
-}
 /** @}
  */

 /branches/sparc/kernel/generic/src/ipc/ipc.c
 ,7 → 43,6
 #include <synch/waitq.h>
 #include <synch/synch.h>
 #include <ipc/ipc.h>
-#include <ipc/kbox.h>
 #include <errno.h>
 #include <mm/slab.h>
 #include <arch.h>
 ,7 → 51,6
 #include <debug.h>
 #include <print.h>
-#include <console/console.h>
 #include <proc/thread.h>
 #include <arch/interrupt.h>
 #include <ipc/irq.h>
 ,7 → 427,7
  *
  * @param lst       Head of the list to be cleaned up.
  */
-void ipc_cleanup_call_list(link_t *lst)
+static void ipc_cleanup_call_list(link_t *lst)
 {
     call_t *call;
 ,31 → 442,33
     }
 }
-/** Disconnects all phones connected to an answerbox.
+/** Cleans up all IPC communication of the current task.
  *
- * @param box       Answerbox to disconnect phones from.
- * @param notify_box    If true, the answerbox will get a hangup message for
- *          each disconnected phone.
+ * Note: ipc_hangup sets returning answerbox to TASK->answerbox, you
+ * have to change it as well if you want to cleanup other tasks than TASK.
  */
-void ipc_answerbox_slam_phones(answerbox_t *box, bool notify_box)
+void ipc_cleanup(void)
 {
+    int i;
+    call_t *call;
     phone_t *phone;
     DEADLOCK_PROBE_INIT(p_phonelck);
-    ipl_t ipl;
-    call_t *call;
-    call = notify_box ? ipc_call_alloc(0) : NULL;
+    /* Disconnect all our phones ('ipc_phone_hangup') */
+    for (i = 0; i < IPC_MAX_PHONES; i++)
+        ipc_phone_hangup(&TASK->phones[i]);
+    /* Disconnect all connected irqs */
+    ipc_irq_cleanup(&TASK->answerbox);
     /* Disconnect all phones connected to our answerbox */
 restart_phones:
-    ipl = interrupts_disable();
-    spinlock_lock(&box->lock);
-    while (!list_empty(&box->connected_phones)) {
-        phone = list_get_instance(box->connected_phones.next,
+    spinlock_lock(&TASK->answerbox.lock);
+    while (!list_empty(&TASK->answerbox.connected_phones)) {
+        phone = list_get_instance(TASK->answerbox.connected_phones.next,
             phone_t, link);
         if (SYNCH_FAILED(mutex_trylock(&phone->lock))) {
-            spinlock_unlock(&box->lock);
-            interrupts_restore(ipl);
+            spinlock_unlock(&TASK->answerbox.lock);
             DEADLOCK_PROBE(p_phonelck, DEADLOCK_THRESHOLD);
             goto restart_phones;
         }
 ,70 → 475,13
         /* Disconnect phone */
         ASSERT(phone->state == IPC_PHONE_CONNECTED);
+        phone->state = IPC_PHONE_SLAMMED;
         list_remove(&phone->link);
-        phone->state = IPC_PHONE_SLAMMED;
-        if (notify_box) {
-            mutex_unlock(&phone->lock);
-            spinlock_unlock(&box->lock);
-            interrupts_restore(ipl);
-            /*
-             * Send one message to the answerbox for each
-             * phone. Used to make sure the kbox thread
-             * wakes up after the last phone has been
-             * disconnected.
-             */
-            IPC_SET_METHOD(call->data, IPC_M_PHONE_HUNGUP);
-            call->flags |= IPC_CALL_DISCARD_ANSWER;
-            _ipc_call(phone, box, call);
-            /* Allocate another call in advance */
-            call = ipc_call_alloc(0);
-            /* Must start again */
-            goto restart_phones;
-        }
         mutex_unlock(&phone->lock);
     }
-    spinlock_unlock(&box->lock);
-    interrupts_restore(ipl);
-    /* Free unused call */
-    if (call)
-        ipc_call_free(call);
-}
-/** Cleans up all IPC communication of the current task.
- *
- * Note: ipc_hangup sets returning answerbox to TASK->answerbox, you
- * have to change it as well if you want to cleanup other tasks than TASK.
- */
-void ipc_cleanup(void)
-{
-    int i;
-    call_t *call;
-    /* Disconnect all our phones ('ipc_phone_hangup') */
-    for (i = 0; i < IPC_MAX_PHONES; i++)
-        ipc_phone_hangup(&TASK->phones[i]);
-    /* Disconnect all connected irqs */
-    ipc_irq_cleanup(&TASK->answerbox);
-    /* Disconnect all phones connected to our regular answerbox */
-    ipc_answerbox_slam_phones(&TASK->answerbox, false);
-#ifdef CONFIG_UDEBUG
-    /* Clean up kbox thread and communications */
-    ipc_kbox_cleanup();
-#endif
     /* Answer all messages in 'calls' and 'dispatched_calls' queues */
-    spinlock_lock(&TASK->answerbox.lock);
     ipc_cleanup_call_list(&TASK->answerbox.dispatched_calls);
     ipc_cleanup_call_list(&TASK->answerbox.calls);
     spinlock_unlock(&TASK->answerbox.lock);
 ,13 → 517,7
             (call->flags & IPC_CALL_NOTIF));
         ASSERT(!(call->flags & IPC_CALL_STATIC_ALLOC));
-        /*
-         * Record the receipt of this call in the current task's counter
-         * of active calls. IPC_M_PHONE_HUNGUP calls do not contribute
-         * to this counter so do not record answers to them either.
-         */
-        if (!(call->flags & IPC_CALL_DISCARD_ANSWER))
-            atomic_dec(&TASK->active_calls);
+        atomic_dec(&TASK->active_calls);
         ipc_call_free(call);
     }
 }

 /branches/sparc/kernel/generic/src/lib/memstr.c
 ,10 → 34,12
  * @file
  * @brief   Memory string operations.
  *
- * This file provides architecture independent functions to manipulate blocks of
- * memory. These functions are optimized as much as generic functions of this
- * type can be. However, architectures are free to provide even more optimized
- * versions of these functions.
+ * This file provides architecture independent functions
+ * to manipulate blocks of memory. These functions
+ * are optimized as much as generic functions of
+ * this type can be. However, architectures are
+ * free to provide even more optimized versions of these
+ * functions.
  */
 #include <memstr.h>
 ,33 → 46,32
 #include <arch/types.h>
 #include <align.h>
-/** Copy block of memory.
+/** Copy block of memory
  *
- * Copy cnt bytes from src address to dst address.  The copying is done
- * word-by-word and then byte-by-byte.  The source and destination memory areas
- * cannot overlap.
+ * Copy cnt bytes from src address to dst address.
+ * The copying is done word-by-word and then byte-by-byte.
+ * The source and destination memory areas cannot overlap.
  *
- * @param src       Source address to copy from.
- * @param dst       Destination address to copy to.
- * @param cnt       Number of bytes to copy.
+ * @param src Origin address to copy from.
+ * @param dst Origin address to copy to.
+ * @param cnt Number of bytes to copy.
  *
- * @return      Destination address.
  */
-void *_memcpy(void *dst, const void *src, size_t cnt)
+void *_memcpy(void * dst, const void *src, size_t cnt)
 {
     unsigned int i, j;
     if (ALIGN_UP((uintptr_t) src, sizeof(unative_t)) != (uintptr_t) src ||
-        ALIGN_UP((uintptr_t) dst, sizeof(unative_t)) != (uintptr_t) dst) {
+        ALIGN_UP((uintptr_t) dst, sizeof(unative_t)) != (uintptr_t) dst) {
         for (i = 0; i < cnt; i++)
             ((uint8_t *) dst)[i] = ((uint8_t *) src)[i];
     } else {
         for (i = 0; i < cnt / sizeof(unative_t); i++)
             ((unative_t *) dst)[i] = ((unative_t *) src)[i];
         for (j = 0; j < cnt % sizeof(unative_t); j++)
-            ((uint8_t *)(((unative_t *) dst) + i))[j] =
-                ((uint8_t *)(((unative_t *) src) + i))[j];
+            ((uint8_t *)(((unative_t *) dst) + i))[j] = ((uint8_t *)(((unative_t *) src) + i))[j];
     }
     return (char *) dst;
 ,12 → 79,12
 /** Fill block of memory
  *
- * Fill cnt bytes at dst address with the value x.  The filling is done
- * byte-by-byte.
+ * Fill cnt bytes at dst address with the value x.
+ * The filling is done byte-by-byte.
  *
- * @param dst       Destination address to fill.
- * @param cnt       Number of bytes to fill.
- * @param x     Value to fill.
+ * @param dst Origin address to fill.
+ * @param cnt Number of bytes to fill.
+ * @param x   Value to fill.
  *
  */
 void _memsetb(void *dst, size_t cnt, uint8_t x)
 ,14 → 96,14
         p[i] = x;
 }
-/** Fill block of memory.
+/** Fill block of memory
  *
- * Fill cnt words at dst address with the value x.  The filling is done
- * word-by-word.
+ * Fill cnt words at dst address with the value x.
+ * The filling is done word-by-word.
  *
- * @param dst       Destination address to fill.
- * @param cnt       Number of words to fill.
- * @param x     Value to fill.
+ * @param dst Origin address to fill.
+ * @param cnt Number of words to fill.
+ * @param x   Value to fill.
  *
  */
 void _memsetw(void *dst, size_t cnt, uint16_t x)
 ,16 → 115,16
         p[i] = x;
 }
-/** Copy string.
+/** Copy string
  *
- * Copy string from src address to dst address.  The copying is done
- * char-by-char until the null character. The source and destination memory
- * areas cannot overlap.
+ * Copy string from src address to dst address.
+ * The copying is done char-by-char until the null
+ * character. The source and destination memory areas
+ * cannot overlap.
  *
- * @param src       Source string to copy from.
- * @param dst       Destination string to copy to.
+ * @param src Origin string to copy from.
+ * @param dst Origin string to copy to.
  *
- * @return      Address of the destination string.
  */
 char *strcpy(char *dest, const char *src)
 {

 /branches/sparc/kernel/generic/src/syscall/syscall.c
 ,7 → 53,6
 #include <syscall/copy.h>
 #include <sysinfo/sysinfo.h>
 #include <console/console.h>
-#include <udebug/udebug.h>
 /** Print using kernel facility
  *
 ,16 → 101,9
 {
     unative_t rc;
-#ifdef CONFIG_UDEBUG
-    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
-#endif
-    if (id < SYSCALL_END) {
-#ifdef CONFIG_UDEBUG
-        udebug_stoppable_begin();
-#endif
+    if (id < SYSCALL_END)
         rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
-    } else {
+    else {
         printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
         task_kill(TASK->taskid);
         thread_exit();
 ,11 → 111,6
     if (THREAD->interrupted)
         thread_exit();
-#ifdef CONFIG_UDEBUG
-    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
-    udebug_stoppable_end();
-#endif
     return rc;
 }
 ,9 → 165,7
     (syshandler_t) sys_sysinfo_value,
     /* Debug calls */
-    (syshandler_t) sys_debug_enable_console,
-    (syshandler_t) sys_ipc_connect_kbox
+    (syshandler_t) sys_debug_enable_console
 };
 /** @}

 /branches/sparc/kernel/generic/src/console/cmd.c
 ,17 → 398,17
     .argc = 0
 };
-/* Data and methods for 'ipc' command */
-static int cmd_ipc(cmd_arg_t *argv);
-static cmd_arg_t ipc_argv = {
+/* Data and methods for 'ipc_task' command */
+static int cmd_ipc_task(cmd_arg_t *argv);
+static cmd_arg_t ipc_task_argv = {
     .type = ARG_TYPE_INT,
 };
-static cmd_info_t ipc_info = {
-    .name = "ipc",
-    .description = "ipc <taskid> Show IPC information of given task.",
-    .func = cmd_ipc,
+static cmd_info_t ipc_task_info = {
+    .name = "ipc_task",
+    .description = "ipc_task <taskid> Show IPC information of given task.",
+    .func = cmd_ipc_task,
     .argc = 1,
-    .argv = &ipc_argv
+    .argv = &ipc_task_argv
 };
 /* Data and methods for 'zone' command */
 ,7 → 461,7
     &uptime_info,
     &halt_info,
     &help_info,
-    &ipc_info,
+    &ipc_task_info,
     &set4_info,
     &slabs_info,
     &symaddr_info,
 ,7 → 937,7
  *
  * return Always 1
  */
-int cmd_ipc(cmd_arg_t * argv) {
+int cmd_ipc_task(cmd_arg_t * argv) {
     ipc_print_task(argv[0].intval);
     return 1;
 }

 /branches/sparc/kernel/generic/include/ipc/ipc.h
 ,12 → 195,6
  */
 #define IPC_M_DATA_READ     7
-/** Debug the recipient.
- * - ARG1 - specifies the debug method (from udebug_method_t)
- * - other arguments are specific to the debug method
- */
-#define IPC_M_DEBUG_ALL     8
 /* Well-known methods */
 #define IPC_M_LAST_SYSTEM   511
 #define IPC_M_PING      512
 ,8 → 307,6
 extern int ipc_phone_hangup(phone_t *);
 extern void ipc_backsend_err(phone_t *, call_t *, unative_t);
 extern void ipc_print_task(task_id_t);
-extern void ipc_answerbox_slam_phones(answerbox_t *, bool);
-extern void ipc_cleanup_call_list(link_t *);
 extern answerbox_t *ipc_phone_0;

/branches/sparc/kernel/generic/include/ipc/sysipc.h
57,7 → 57,6
unative_t sys_ipc_register_irq(inr_t inr, devno_t devno, unative_t method,
irq_code_t *ucode);
unative_t sys_ipc_unregister_irq(inr_t inr, devno_t devno);
unative_t sys_ipc_connect_kbox(sysarg64_t *task_id);

#endif

 /branches/sparc/kernel/generic/include/proc/task.h
 ,7 → 52,6
 #include <arch/cpu.h>
 #include <mm/tlb.h>
 #include <proc/scheduler.h>
-#include <udebug/udebug.h>
 struct thread;
 ,20 → 93,6
      * certain extent.
      */
     atomic_t active_calls;
-#ifdef CONFIG_UDEBUG
-    /** Debugging stuff */
-    udebug_task_t udebug;
-    /** Kernel answerbox */
-    answerbox_t kernel_box;
-    /** Thread used to service kernel answerbox */
-    struct thread *kb_thread;
-    /** Kbox thread creation vs. begin of cleanup mutual exclusion */
-    mutex_t kb_cleanup_lock;
-    /** True if cleanup of kbox has already started */
-    bool kb_finished;
-#endif
     /** Architecture specific task data. */
     task_arch_t arch;

 /branches/sparc/kernel/generic/include/proc/thread.h
 ,7 → 46,6
 #include <arch/cpu.h>
 #include <mm/tlb.h>
 #include <proc/uarg.h>
-#include <udebug/udebug.h>
 #define THREAD_STACK_SIZE   STACK_SIZE
 #define THREAD_NAME_BUFLEN  20
 ,12 → 203,6
     /** Thread's kernel stack. */
     uint8_t *kstack;
-#ifdef CONFIG_UDEBUG
-    /** Debugging stuff */
-    udebug_thread_t udebug;
-#endif
 } thread_t;
 /** Thread list lock.

/branches/sparc/kernel/generic/include/syscall/syscall.h
78,7 → 78,6
SYS_SYSINFO_VALUE,

SYS_DEBUG_ENABLE_CONSOLE,
SYS_IPC_CONNECT_KBOX,
SYSCALL_END
} syscall_t;

 /branches/sparc/kernel/kernel.config
 ,8 → 149,6
 # Virtually indexed D-cache support
 ! [ARCH=sparc64] CONFIG_VIRT_IDX_DCACHE (y/n)
-# Support for userspace debuggers
-! CONFIG_UDEBUG (n/y)
 ## Debugging configuration directives

 /branches/sparc/kernel/Makefile
 ,7 → 44,7
 GCC_CFLAGS = -I$(INCLUDES) -O$(OPTIMIZATION) \
     -fno-builtin -Wall -Wextra -Wno-unused-parameter -Wmissing-prototypes -Werror \
-    -nostdlib -nostdinc -pipe
+    -nostdlib -nostdinc
 ICC_CFLAGS = -I$(INCLUDES) -O$(OPTIMIZATION) \
     -fno-builtin -Wall -Wmissing-prototypes -Werror \
 ,10 → 150,6
     endif
 endif
-ifeq ($(CONFIG_UDEBUG),y)
-    DEFS += -DCONFIG_UDEBUG
-endif
 ## Simple detection for the type of the host system
 #
 HOST = $(shell uname)
 ,17 → 283,6
     generic/src/security/cap.c \
     generic/src/sysinfo/sysinfo.c
-## Udebug interface sources
-#
-ifeq ($(CONFIG_UDEBUG),y)
-GENERIC_SOURCES += \
-    generic/src/ipc/kbox.c \
-    generic/src/udebug/udebug.c \
-    generic/src/udebug/udebug_ops.c \
-    generic/src/udebug/udebug_ipc.c
-endif
 ## Test sources
 #
 ,7 → 350,7
     ln -sfn ../../genarch/include/ generic/include/genarch
 depend: archlinks
-    -makedepend -f - -- $(DEFS) $(CFLAGS) -- $(ARCH_SOURCES) $(GENARCH_SOURCES) $(GENERIC_SOURCES) > Makefile.depend 2> /dev/null
+    -makedepend $(DEFS) $(CFLAGS) -f - $(ARCH_SOURCES) $(GENARCH_SOURCES) $(GENERIC_SOURCES) > Makefile.depend 2> /dev/null
 arch/$(ARCH)/_link.ld: arch/$(ARCH)/_link.ld.in
     $(GCC) $(DEFS) $(GCC_CFLAGS) -D__ASM__ -D__LINKER__ -E -x c $< | grep -v "^\#" > $@

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